Neal Richardson created ARROW-8353:
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Summary: [C++] is_nullable maybe not initialized in parquet writer
Key: ARROW-8353
URL: https://issues.apache.org/jira/browse/ARROW-8353
Project: Apache Arrow
Issue Type: Bug
Components: C++
Reporter: Neal Richardson
>From the Rtools build:
{code}
[ 84%] Building CXX object
src/parquet/CMakeFiles/parquet_static.dir/column_reader.cc.obj
In file included from D:/a/arrow/arrow/cpp/src/arrow/io/concurrency.h:23:0,
from D:/a/arrow/arrow/cpp/src/arrow/io/memory.h:25,
from D:/a/arrow/arrow/cpp/src/parquet/platform.h:25,
from D:/a/arrow/arrow/cpp/src/parquet/arrow/writer.h:23,
from D:/a/arrow/arrow/cpp/src/parquet/arrow/writer.cc:18:
D:/a/arrow/arrow/cpp/src/arrow/result.h: In member function 'virtual
arrow::Status parquet::arrow::FileWriterImpl::WriteColumnChunk(const
std::shared_ptr<arrow::ChunkedArray>&, int64_t, int64_t)':
D:/a/arrow/arrow/cpp/src/arrow/result.h:428:28: warning: 'is_nullable' may be
used uninitialized in this function [-Wmaybe-uninitialized]
auto result_name = (rexpr); \
^
D:/a/arrow/arrow/cpp/src/parquet/arrow/writer.cc:430:10: note: 'is_nullable'
was declared here
bool is_nullable;
^
{code}
I'd give it a default value, but IDK that it's that simple.
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